X-Plane official website ,X-Plane.com
X-Plane-Support and Knowledge-base


X-Plane.org
Website with forum, file-library and webshop

   


X-Plained.com
Website with Articles,Reviews/Impressions,Screenshots,Tutotials and Downloads


AVSIM.net
Website with forum and file-library

   


X-Pilot.com
Website with forum and file-library